I just went to orientation for nursing, and I haven't even taken my prerequisites yet. I have to take a year of prerequisites. When I start clinicals, will I even be tested? Or will I not be tested until I apply for a job/get a job? I've been really stressed lately and I've been thinking of smoking again. I stopped because I didn't know if I would have the prerequisites or if I was going to community college, where my local one you get right into nursing. And I didn't want to endanger anyone or test positive for drugs. Help!?